You, me, and my first International Math Olympiad problem

blackpenredpen 604,933 lượt xem 4 years ago

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My first international math olympiad (IMO) question. We will find the sum of the digits of the sum of the digits of the sum of the digits of 4444^4444. This is a pretty famous number theory problem.

Check out more fun math competition problems: https://www.youtube.com/watch?v=UNNQxE35ytI&list=PLj7p5OoL6vGzJxJU1seMmj-5CBNhMYStQ
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